1-3/4-Inch Extension 65721 Corrosion resistant for long life Durable chrome-plated finish Knurled handle for enhanced grip Since 1857, Klein Tools has manufactured the world's finest hand tools Male Square 3/8-Inch Drive Buy Now Find Retailer Product Media Specifications Warnings Related Items Reviews Videos Downloads Brochure Images High-Res JPG 65721_photo.jpg PNG 65721.png Interactive Catalog Product Page Catalog Page The Klein 65721 1 3/4-Inch extension is designed with a 3/8-Inch socket size. This extension is very desirable for hard to reach areas. It is forged from the highest quality alloy steel. Specifications Socket Size: 3/8'' Weight: 1.4 oz (40 g) UPC: 092644657214 Additional Information Warranty Compliance Warnings Always wear approved eye protection. Related Items 65720 7-Inch Ratchet, 3/8-Inch Drive 65722 3-Inch Extension 65723 6-Inch Extension 3/8-Inch Socket Size 65724 5/8-Inch Spark Plug Socket, 3/8-Inch Drive 65820 10-Inch Ratchet, 1/2-Inch Drive 65823 5/8-Inch Spark Plug Socket 1/2-Inch Drive 65620 4-3/4-Inch Ratchet, 1/4-Inch Drive 65621 Spinner Handle 65622 2-Inch Extension with 1/4-Inch Socket Size 65623 6-Inch Extension